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Overview

Description

The F1977 digital step attenuator featuring Glitch-Free™ technology improves system reliability and settling time. It has an attenuation range of 31.75dB with excellent accuracy and very low distortion and insertion loss.

Features

  • 5MHz to 3000MHz frequency range
  • Glitch-Free™ low transient overshoot
  • Low insertion loss < 1.4dB at 1GHz
  • Excellent linearity +64dBm IIP3
  • Attenuation step error 0.1dB at 1GHz
  • Serial and Parallel interface 31.75dB range
  • Low spurious design
  • 3V/5V supply, 1.8V/3.3V control logic
  • Fast settling time
  • Class 1C JEDEC ESD (1.5kV HBM)
  • 5mm x 5mm 32-VFQFPN package

Comparison

Applications

  • CATV infrastructure
  • CATV set-top boxes
  • CATV satellite modems
  • Data network equipment
  • Fiber networks

Documentation

Type Title Date
Datasheet PDF 10.67 MB
Guide PDF 2.24 MB
Guide PDF 2.83 MB
Product Brief PDF 1.07 MB
Application Brief PDF 686 KB
5 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
Software & Tools - Software Log in to Download ZIP 169.81 MB
1 item

Boards & Kits

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models

Product Options

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